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trapexit
1 year ago
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22 changed files with 1076 additions and 171 deletions
-
49README.md
-
86man/mergerfs.1
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4src/config.cpp
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6src/config.hpp
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13src/fs_devid.hpp
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4src/fs_dirfd.hpp
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13src/fs_inode.cpp
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6src/fs_inode.hpp
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75src/fuse_readdir.cpp
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33src/fuse_readdir.hpp
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34src/fuse_readdir_base.hpp
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194src/fuse_readdir_cor.cpp
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48src/fuse_readdir_cor.hpp
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173src/fuse_readdir_cosr.cpp
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39src/fuse_readdir_cosr.hpp
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75src/fuse_readdir_factory.cpp
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18src/fuse_readdir_factory.hpp
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30src/fuse_readdir_plus.cpp
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43src/fuse_readdir_seq.cpp
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19src/fuse_readdir_seq.hpp
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161src/unbounded_queue.hpp
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124src/unbounded_thread_pool.hpp
@ -0,0 +1,34 @@ |
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/*
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Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link> |
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|
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Permission to use, copy, modify, and/or distribute this software for any |
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purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#pragma once
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#include "fuse.h"
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namespace FUSE |
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{ |
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class ReadDirBase |
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{ |
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public: |
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ReadDirBase() {}; |
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virtual ~ReadDirBase() {}; |
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|
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public: |
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virtual int operator()(fuse_file_info_t const *ffi, |
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fuse_dirents_t *buf) = 0; |
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}; |
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} |
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@ -0,0 +1,194 @@ |
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/*
|
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Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link> |
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|
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Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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|
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#include "fuse_readdir_cor.hpp"
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#include "config.hpp"
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#include "dirinfo.hpp"
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#include "errno.hpp"
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#include "fs_closedir.hpp"
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#include "fs_devid.hpp"
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#include "fs_inode.hpp"
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#include "fs_opendir.hpp"
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#include "fs_path.hpp"
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#include "fs_readdir.hpp"
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#include "hashset.hpp"
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#include "ugid.hpp"
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#include "fuse_dirents.h"
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FUSE::ReadDirCOR::ReadDirCOR(unsigned concurrency_) |
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: _tp(concurrency_) |
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{ |
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|
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} |
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|
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FUSE::ReadDirCOR::~ReadDirCOR() |
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{ |
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} |
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|
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namespace l |
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{ |
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static |
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inline |
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uint64_t |
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dirent_exact_namelen(const struct dirent *d_) |
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{ |
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#ifdef _D_EXACT_NAMLEN
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return _D_EXACT_NAMLEN(d_); |
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#elif defined _DIRENT_HAVE_D_NAMLEN
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return d_->d_namlen; |
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#else
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return strlen(d_->d_name); |
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#endif
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} |
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static |
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inline |
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int |
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readdir(std::string basepath_, |
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HashSet &names_, |
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std::mutex &names_mutex_, |
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fuse_dirents_t *buf_, |
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std::mutex &dirents_mutex_) |
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{ |
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int rv; |
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int err; |
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DIR *dh; |
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dev_t dev; |
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std::string filepath; |
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dh = fs::opendir(basepath_); |
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if(dh == NULL) |
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return -errno; |
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dev = fs::devid(dh); |
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rv = 0; |
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err = 0; |
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for(struct dirent *de = fs::readdir(dh); de && !rv; de = fs::readdir(dh)) |
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{ |
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std::uint64_t namelen; |
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namelen = l::dirent_exact_namelen(de); |
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{ |
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std::lock_guard<std::mutex> lk(names_mutex_); |
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rv = names_.put(de->d_name,namelen); |
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if(rv == 0) |
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continue; |
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} |
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filepath = fs::path::make(basepath_,de->d_name); |
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de->d_ino = fs::inode::calc(filepath, |
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DTTOIF(de->d_type), |
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dev, |
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de->d_ino); |
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{ |
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std::lock_guard<std::mutex> lk(dirents_mutex_); |
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rv = fuse_dirents_add(buf_,de,namelen); |
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if(rv == 0) |
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continue; |
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} |
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err = -ENOMEM; |
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} |
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fs::closedir(dh); |
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return err; |
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} |
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static |
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std::vector<int> |
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concurrent_readdir(ThreadPool &tp_, |
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const Branches::CPtr &branches_, |
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const char *dirname_, |
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fuse_dirents_t *buf_) |
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{ |
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HashSet names; |
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std::mutex names_mutex; |
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std::mutex dirents_mutex; |
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std::vector<int> rv; |
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std::vector<std::future<int>> futures; |
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for(auto const &branch : *branches_) |
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{ |
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auto func = [&]() |
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{ |
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std::string basepath = fs::path::make(branch.path,dirname_); |
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return l::readdir(basepath,names,names_mutex,buf_,dirents_mutex); |
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}; |
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auto rv = tp_.enqueue_task(func); |
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futures.emplace_back(std::move(rv)); |
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} |
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for(auto &future : futures) |
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rv.push_back(future.get()); |
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return rv; |
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} |
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static |
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int |
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calc_rv(std::vector<int> rvs_) |
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{ |
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for(auto rv : rvs_) |
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{ |
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if(rv == 0) |
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return 0; |
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} |
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|
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if(rvs_.empty()) |
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return -ENOENT; |
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return rvs_[0]; |
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} |
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static |
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int |
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readdir(ThreadPool &tp_, |
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const Branches::CPtr &branches_, |
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const char *dirname_, |
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fuse_dirents_t *buf_) |
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{ |
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std::vector<int> rvs; |
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fuse_dirents_reset(buf_); |
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rvs = l::concurrent_readdir(tp_,branches_,dirname_,buf_); |
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return l::calc_rv(rvs); |
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} |
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} |
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|
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int |
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FUSE::ReadDirCOR::operator()(fuse_file_info_t const *ffi_, |
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fuse_dirents_t *buf_) |
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{ |
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Config::Read cfg; |
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DirInfo *di = reinterpret_cast<DirInfo*>(ffi_->fh); |
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const fuse_context *fc = fuse_get_context(); |
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const ugid::Set ugid(fc->uid,fc->gid); |
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return l::readdir(_tp,cfg->branches,di->fusepath.c_str(),buf_); |
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} |
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@ -0,0 +1,173 @@ |
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/*
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Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
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Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
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#include "fuse_readdir_cosr.hpp"
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#include "config.hpp"
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#include "dirinfo.hpp"
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#include "errno.hpp"
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#include "fs_closedir.hpp"
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#include "fs_devid.hpp"
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#include "fs_dirfd.hpp"
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#include "fs_inode.hpp"
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#include "fs_opendir.hpp"
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#include "fs_path.hpp"
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#include "fs_readdir.hpp"
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#include "fs_stat.hpp"
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#include "hashset.hpp"
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#include "ugid.hpp"
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#include "fuse_dirents.h"
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FUSE::ReadDirCOSR::ReadDirCOSR(unsigned concurrency_) |
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: _tp(concurrency_) |
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{ |
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|
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} |
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|
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FUSE::ReadDirCOSR::~ReadDirCOSR() |
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{ |
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} |
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namespace l |
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{ |
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static |
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inline |
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uint64_t |
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dirent_exact_namelen(const struct dirent *d_) |
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{ |
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#ifdef _D_EXACT_NAMLEN
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return _D_EXACT_NAMLEN(d_); |
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#elif defined _DIRENT_HAVE_D_NAMLEN
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return d_->d_namlen; |
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#else
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return strlen(d_->d_name); |
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#endif
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} |
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static |
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inline |
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std::vector<std::future<DIR*>> |
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opendir(ThreadPool &tp_, |
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const Branches::CPtr &branches_, |
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char const *dirname_) |
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{ |
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std::vector<std::future<DIR*>> futures; |
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|
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for(auto const &branch : *branches_) |
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{ |
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auto func = [&branch,dirname_]() |
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{ |
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std::string basepath = fs::path::make(branch.path,dirname_); |
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return fs::opendir(basepath); |
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}; |
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auto rv = tp_.enqueue_task(func); |
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futures.emplace_back(std::move(rv)); |
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} |
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return futures; |
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} |
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static |
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inline |
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int |
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readdir(std::vector<std::future<DIR*>> &dh_futures_, |
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char const *dirname_, |
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fuse_dirents_t *buf_) |
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{ |
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int err; |
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HashSet names; |
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std::string fullpath; |
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|
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err = 0; |
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for(auto &dh_future : dh_futures_) |
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{ |
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int rv; |
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DIR *dh; |
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dev_t dev; |
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|
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dh = dh_future.get(); |
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if(dh == NULL) |
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continue; |
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dev = fs::devid(dh); |
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rv = 0; |
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for(struct dirent *de = fs::readdir(dh); de && !rv; de = fs::readdir(dh)) |
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{ |
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std::uint64_t namelen; |
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namelen = l::dirent_exact_namelen(de); |
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rv = names.put(de->d_name,namelen); |
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if(rv == 0) |
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continue; |
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fullpath = fs::path::make(dirname_,de->d_name); |
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de->d_ino = fs::inode::calc(fullpath, |
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DTTOIF(de->d_type), |
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dev, |
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de->d_ino); |
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rv = fuse_dirents_add(buf_,de,namelen); |
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if(rv == 0) |
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continue; |
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|
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err = -ENOMEM; |
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} |
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|
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fs::closedir(dh); |
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} |
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return err; |
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} |
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static |
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inline |
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int |
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readdir(ThreadPool &tp_, |
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const Branches::CPtr &branches_, |
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const char *dirname_, |
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fuse_dirents_t *buf_) |
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{ |
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int rv; |
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std::vector<std::future<DIR*>> dh_futures; |
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|
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fuse_dirents_reset(buf_); |
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dh_futures = l::opendir(tp_,branches_,dirname_); |
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rv = l::readdir(dh_futures,dirname_,buf_); |
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|
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return rv; |
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} |
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} |
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|
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int |
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FUSE::ReadDirCOSR::operator()(fuse_file_info_t const *ffi_, |
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fuse_dirents_t *buf_) |
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{ |
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Config::Read cfg; |
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DirInfo *di = reinterpret_cast<DirInfo*>(ffi_->fh); |
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const fuse_context *fc = fuse_get_context(); |
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const ugid::Set ugid(fc->uid,fc->gid); |
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|
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return l::readdir(_tp,cfg->branches,di->fusepath.c_str(),buf_); |
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} |
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@ -0,0 +1,39 @@ |
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/*
|
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ISC License |
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|
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Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
|||
Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
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|
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#pragma once
|
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|
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#include "fuse_readdir_base.hpp"
|
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#include "unbounded_thread_pool.hpp"
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|
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// concurrent open, sequential read
|
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namespace FUSE |
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{ |
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class ReadDirCOSR final : public FUSE::ReadDirBase |
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{ |
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public: |
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ReadDirCOSR(unsigned concurrency); |
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~ReadDirCOSR(); |
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|
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int operator()(fuse_file_info_t const *ffi, |
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fuse_dirents_t *buf); |
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|
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private: |
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ThreadPool _tp; |
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}; |
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} |
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@ -0,0 +1,75 @@ |
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/*
|
|||
ISC License |
|||
|
|||
Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link> |
|||
|
|||
Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|||
*/ |
|||
|
|||
#include "fuse_readdir_factory.hpp"
|
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|
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#include "fuse_readdir_cor.hpp"
|
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#include "fuse_readdir_cosr.hpp"
|
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#include "fuse_readdir_seq.hpp"
|
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|
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#include <cassert>
|
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#include <cmath>
|
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#include <cstdio>
|
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#include <cstdlib>
|
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|
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|
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namespace l |
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{ |
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static |
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void |
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read_cfg(std::string const cfgstr_, |
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std::string &type_, |
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int &concurrency_) |
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{ |
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char type[16]; |
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int concurrency; |
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|
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concurrency = 0; |
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std::sscanf(cfgstr_.c_str(),"%15[a-z]:%u",type,&concurrency); |
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|
|||
if(concurrency == 0) |
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concurrency = std::thread::hardware_concurrency(); |
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else if(concurrency < 0) |
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concurrency = (std::thread::hardware_concurrency() / std::abs(concurrency)); |
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|
|||
if(concurrency == 0) |
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concurrency = 1; |
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|
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type_ = type; |
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concurrency_ = concurrency; |
|||
} |
|||
} |
|||
|
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std::shared_ptr<FUSE::ReadDirBase> |
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FUSE::ReadDirFactory::make(std::string const cfgstr_) |
|||
{ |
|||
int concurrency; |
|||
std::string type; |
|||
|
|||
l::read_cfg(cfgstr_,type,concurrency); |
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assert(concurrency); |
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|
|||
if(type == "seq") |
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return std::make_shared<FUSE::ReadDirSeq>(); |
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if(type == "cosr") |
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return std::make_shared<FUSE::ReadDirCOSR>(concurrency); |
|||
if(type == "cor") |
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return std::make_shared<FUSE::ReadDirCOR>(concurrency); |
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|
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return {}; |
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} |
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@ -0,0 +1,161 @@ |
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#pragma once
|
|||
|
|||
#include <condition_variable>
|
|||
#include <mutex>
|
|||
#include <queue>
|
|||
#include <utility>
|
|||
|
|||
|
|||
template<typename T> |
|||
class UnboundedQueue |
|||
{ |
|||
public: |
|||
explicit |
|||
UnboundedQueue(bool block_ = true) |
|||
: _block(block_) |
|||
{ |
|||
} |
|||
|
|||
void |
|||
push(const T& item_) |
|||
{ |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
_queue.push(item_); |
|||
} |
|||
_condition.notify_one(); |
|||
} |
|||
|
|||
void |
|||
push(T&& item_) |
|||
{ |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
_queue.push(std::move(item_)); |
|||
} |
|||
|
|||
_condition.notify_one(); |
|||
} |
|||
|
|||
template<typename... Args> |
|||
void |
|||
emplace(Args&&... args_) |
|||
{ |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
_queue.emplace(std::forward<Args>(args_)...); |
|||
} |
|||
|
|||
_condition.notify_one(); |
|||
} |
|||
|
|||
bool |
|||
try_push(const T& item_) |
|||
{ |
|||
{ |
|||
std::unique_lock<std::mutex> lock(_queue_lock, std::try_to_lock); |
|||
if(!lock) |
|||
return false; |
|||
_queue.push(item_); |
|||
} |
|||
|
|||
_condition.notify_one(); |
|||
|
|||
return true; |
|||
} |
|||
|
|||
bool |
|||
try_push(T&& item_) |
|||
{ |
|||
{ |
|||
std::unique_lock<std::mutex> lock(_queue_lock, std::try_to_lock); |
|||
if(!lock) |
|||
return false; |
|||
_queue.push(std::move(item_)); |
|||
} |
|||
|
|||
_condition.notify_one(); |
|||
|
|||
return true; |
|||
} |
|||
|
|||
//TODO: push multiple T at once
|
|||
|
|||
bool |
|||
pop(T& item_) |
|||
{ |
|||
std::unique_lock<std::mutex> guard(_queue_lock); |
|||
|
|||
_condition.wait(guard, [&]() { return !_queue.empty() || !_block; }); |
|||
if(_queue.empty()) |
|||
return false; |
|||
|
|||
item_ = std::move(_queue.front()); |
|||
_queue.pop(); |
|||
|
|||
return true; |
|||
} |
|||
|
|||
bool |
|||
try_pop(T& item_) |
|||
{ |
|||
std::unique_lock<std::mutex> lock(_queue_lock, std::try_to_lock); |
|||
if(!lock || _queue.empty()) |
|||
return false; |
|||
|
|||
item_ = std::move(_queue.front()); |
|||
_queue.pop(); |
|||
|
|||
return true; |
|||
} |
|||
|
|||
std::size_t |
|||
size() const |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
|
|||
return _queue.size(); |
|||
} |
|||
|
|||
bool |
|||
empty() const |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
|
|||
return _queue.empty(); |
|||
} |
|||
|
|||
void |
|||
block() |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
_block = true; |
|||
} |
|||
|
|||
void |
|||
unblock() |
|||
{ |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
_block = false; |
|||
} |
|||
|
|||
_condition.notify_all(); |
|||
} |
|||
|
|||
bool |
|||
blocking() const |
|||
{ |
|||
std::lock_guard<std::mutex> guard(_queue_lock); |
|||
|
|||
return _block; |
|||
} |
|||
|
|||
private: |
|||
mutable std::mutex _queue_lock; |
|||
|
|||
private: |
|||
bool _block; |
|||
std::queue<T> _queue; |
|||
std::condition_variable _condition; |
|||
}; |
|||
@ -0,0 +1,124 @@ |
|||
#pragma once
|
|||
|
|||
#include "unbounded_queue.hpp"
|
|||
|
|||
#include <tuple>
|
|||
#include <atomic>
|
|||
#include <vector>
|
|||
#include <thread>
|
|||
#include <memory>
|
|||
#include <future>
|
|||
#include <utility>
|
|||
#include <functional>
|
|||
#include <type_traits>
|
|||
|
|||
|
|||
class ThreadPool |
|||
{ |
|||
public: |
|||
explicit |
|||
ThreadPool(const std::size_t thread_count_ = std::thread::hardware_concurrency()) |
|||
: _queues(thread_count_), |
|||
_count(thread_count_) |
|||
{ |
|||
auto worker = [this](std::size_t i) |
|||
{ |
|||
while(true) |
|||
{ |
|||
Proc f; |
|||
|
|||
for(std::size_t n = 0; n < (_count * K); ++n) |
|||
{ |
|||
if(_queues[(i + n) % _count].try_pop(f)) |
|||
break; |
|||
} |
|||
|
|||
if(!f && !_queues[i].pop(f)) |
|||
break; |
|||
|
|||
f(); |
|||
} |
|||
}; |
|||
|
|||
_threads.reserve(thread_count_); |
|||
for(std::size_t i = 0; i < thread_count_; ++i) |
|||
_threads.emplace_back(worker, i); |
|||
} |
|||
|
|||
~ThreadPool() |
|||
{ |
|||
for(auto& queue : _queues) |
|||
queue.unblock(); |
|||
for(auto& thread : _threads) |
|||
thread.join(); |
|||
} |
|||
|
|||
template<typename F> |
|||
void |
|||
enqueue_work(F&& f_) |
|||
{ |
|||
auto i = _index++; |
|||
|
|||
for(std::size_t n = 0; n < (_count * K); ++n) |
|||
{ |
|||
if(_queues[(i + n) % _count].try_push(f_)) |
|||
return; |
|||
} |
|||
|
|||
_queues[i % _count].push(std::move(f_)); |
|||
} |
|||
|
|||
template<typename F> |
|||
[[nodiscard]] |
|||
std::future<typename std::result_of<F()>::type> |
|||
enqueue_task(F&& f_) |
|||
{ |
|||
using TaskReturnType = typename std::result_of<F()>::type; |
|||
using Promise = std::promise<TaskReturnType>; |
|||
|
|||
auto i = _index++; |
|||
auto promise = std::make_shared<Promise>(); |
|||
auto future = promise->get_future(); |
|||
auto work = [=]() { |
|||
auto rv = f_(); |
|||
promise->set_value(rv); |
|||
}; |
|||
|
|||
for(std::size_t n = 0; n < (_count * K); ++n) |
|||
{ |
|||
if(_queues[(i + n) % _count].try_push(work)) |
|||
return future; |
|||
} |
|||
|
|||
_queues[i % _count].push(std::move(work)); |
|||
|
|||
return future; |
|||
} |
|||
|
|||
public: |
|||
std::vector<pthread_t> |
|||
threads() |
|||
{ |
|||
std::vector<pthread_t> rv; |
|||
|
|||
for(auto &thread : _threads) |
|||
rv.push_back(thread.native_handle()); |
|||
|
|||
return rv; |
|||
} |
|||
|
|||
private: |
|||
using Proc = std::function<void(void)>; |
|||
using Queue = UnboundedQueue<Proc>; |
|||
using Queues = std::vector<Queue>; |
|||
Queues _queues; |
|||
|
|||
private: |
|||
std::vector<std::thread> _threads; |
|||
|
|||
private: |
|||
const std::size_t _count; |
|||
std::atomic_uint _index; |
|||
|
|||
static const unsigned int K = 2; |
|||
}; |
|||
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